GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
The height, h, of a thrown ball as a function of t, the amount of time
[#permalink]
16 Jun 2021, 02:05
16 Jun 2021, 02:05
Expert Reply
1
Bookmarks
00:00
Question Stats:
74% (01:20) correct
24% (01:05) wrong based on 28 sessions
Hide Show timer Statistics
The height, h, of a thrown ball as a function of t, the amount of time it has been in the air, is given by \(h(t) = –10t^2 + 40t\). What is the maximum height attained by the ball?
2
20
40
80
160
2
20
40
80
160
The height, h, of a thrown ball as a function of t, the amount of time
[#permalink]
16 Jun 2021, 02:57
16 Jun 2021, 02:57
1
given
\(h(t)=–10t^2+40th(t)=–10t^2+40t\)
for getting maximum height differentiate the equation on both sides
-20t+40 = 0
t = 2
maximum height will be attainted at t=2sec
so h=80-40=40
option C is correct
\(h(t)=–10t^2+40th(t)=–10t^2+40t\)
for getting maximum height differentiate the equation on both sides
-20t+40 = 0
t = 2
maximum height will be attainted at t=2sec
so h=80-40=40
option C is correct
Re: The height, h, of a thrown ball as a function of t, the amount of time
[#permalink]
18 Jun 2021, 05:02
18 Jun 2021, 05:02
I still did not get the explanation. Can someone please explain the solution in detail?
thanks
thanks
